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Chin. Phys. B, 2009, Vol. 18(11): 4823-4828    DOI: 10.1088/1674-1056/18/11/035
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Dynamic splitting and merging of an atom cloud on an atom chip

Ke Min(柯敏),Yan Bo(颜波), Cheng Feng(程峰), and Wang Yu-Zhu(王育竹)
The Laboratory of Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; Center for Cold Atom Physics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract  Chip-based atom interferometers bring together the advantages of atom chips and Bose--Einstein condensates. Their central prerequisite is that a condensate can be coherently split into two halves with a determined relative phase. This paper demonstrates the dynamical splitting and merging of an atom cloud with two U-wires on an atom chip. Symmetrical and asymmetrical splittings are realized by applying a bias field with dif\/ferent directions and magnitudes. The trajectories of the splitting are consistent with theoretical calculations. The atom chip is a good candidate for constructing an atom interferometer.
Keywords:  atom chip      dynamic splitting and merging      chip-based atom interferometers  
Received:  09 December 2008      Revised:  23 February 2009      Accepted manuscript online: 
PACS:  03.75.Dg (Atom and neutron interferometry)  
Fund: Project supported by the State Key Basic Research Program of China (Grant No 2006CB921202) and the National Natural Science Foundation of China (Grant No 10334050).

Cite this article: 

Ke Min(柯敏),Yan Bo(颜波), Cheng Feng(程峰), and Wang Yu-Zhu(王育竹) Dynamic splitting and merging of an atom cloud on an atom chip 2009 Chin. Phys. B 18 4823

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